Constant-volume dispensing coating container

ABSTRACT

An object of the invention is to measure out precisely the liquid to be poured out and applied, to safely achieve the firm assembly of components and to obtain effective function of displays. An applying stopper ( 1 ), which changeovers communication of a measuring chamber (A) formed by rotational operation between a bottle unit ( 8 ) and a pouring out mouth ( 55 ), is attached to a bottle unit ( 8 ). The measuring chamber (A) is structured by parts that cannot be deformed. Inseparable assembling of an attaching unit ( 2 ) and a switching unit ( 4 ) of the applying stopper ( 1 ) is achieved by bending displacement of engagement coupling function parts. An assembling position of the applying stopper ( 1 ) with respect to the bottle unit ( 8 ) in the circumferential direction is aligned.

TECHNICAL FIELD

The present invention relates to a vessel for liquid such as medicatedhair growth tonic which is expensive and an amount of thereof poured outand used in one operation is made to be constant, more particularly, toa vessel in which an mount of liquid poured out in one pouringout/applying operation is automatically measured out to a certainamount.

BACKGROUND OF THE INVENTION

As a pouring out and applying stopper used in this kind of the constantamount pouring out and applying vessel, the Applicant has alreadyproposed the invention according to JP-U-6-35153.

In this prior art, a combination of a switching unit and an operatingunit, which form a measuring chamber and has an opening/closing valveunit assembled at a pouring out mouth and isolates the measuring chamberfrom a bottle unit by a tight contact of the switching unit against asealing outer flange at an ascending limit, is tightly and verticallydisplaceably attached to an attaching unit, which is tightly andimmovably attached to the bottle unit and is provided with a stopperunit having the sealing outer flange and a sealing top surface. In ausable state, only an amount of liquid which has been measured to be asuitable amount can be poured out and a wasteful pouring out of theliquid contained is prevented.

The switching unit is attached to the attaching unit in verticallydisplaceable by putting a threaded tube into threaded engagement with anattaching tube and in inseparable from the attaching unit by the factthat an abutting ridge of the switching unit abuts against a stop ridgeof the attaching unit from underside at the ascending limit.

At a descending limit of the switching unit, a lower surface of a valveseat of a valve unit comes into contact with the sealing top surface ofthe stopper unit, and thereby downward displacement of the valve unit isprevented by the stopper unit in an unused state of the vessel.Therefore, even when an abnormal pressing force is exerted on an upperend of a valve head protruding from the pouring out mouth, the valveunit is not opened, and a closed state of the bottle unit is remained.

In the above-described prior art, the opening/closing valve unit isstructured as follows. The valve head is fitted in the pouring out mouthof the operating unit in such a manner that it is vertically movablecapable of protruding from the mouth and is provided with verticalgrooves notched on its outer circumference surface. A valve seat, whichcan come into close contact with a lower periphery of the pouring outmouth of the operating unit, is provided at a lower end of the valvehead. A plurality of helical elastic elements giving an upward elasticforce are connected to the valve seat at their upper ends and to theswitching unit at their lower ends.

Therefore, the opening/closing valve unit is assembled in such a mannerthat about lower half portion of each elastic element is located in themeasuring chamber under the compressed condition so as to give an upwardelastic force, i.e., under the condition in which each elastic elementis vertically pressed and is elastically deformed.

Because a part of capacity of the measuring chamber is occupied by theplurality of elastic elements, an actual capacity of the measuringchamber is varied by a slight change in the form of elastic deformationof these elastic elements. Therefore, there is a problem that it isdifficult to correctly square an amount of the actually measured liquidwith a predetermined amount.

When the switching unit is assembled to the attaching unit, an abuttingridge disposed around a lower end of an inner circumference surface ofthe switching unit must be forcibly gotten over a helical ridge and astop ridge on an outer circumference surface of an attaching tube to bethreadedly engaged with the attaching unit. Therefore, there is fearthat the above-described ridges may be deformed. Further, there is aproblem that if the height of the abutting ridge is made low in order toprevent occurrence of the deformation, an escape-preventing function ofthe abutting ridge becomes possibly insufficient.

There is another problem that it is impossible to enhance feeling of useby providing at a portion of the abutting ridge of the switching unit athin sounding piece, which, at the ascending and descending limits ofthe switching unit, goes over a vertical ridge provided on an outercircumference surface of the attaching unit to generate a click sound.

This is because there is a large possibility that the sounding piece maybe broken when it goes over the helical ridge and the stop ridge uponattaching the switching unit to the attaching unit.

There is still another problem. If the threaded engagement of theswitching unit to the attaching unit is made tight by rotating theoperating unit excessively, the valve seat of the valve unit, which goesdown together with the switching unit and the operating unit, isstrongly sandwiched between a lower edge of the pouring out mouth of theoperating unit and the sealing top surface of the stopper unit. In thatcase, there was a fear that the valve seat may get deformation or someother damages, and may lose its sealing function.

Moreover, it is not regulated so that a position of attachment of theapplying stopper with respect to the bottle unit in the circumferentialdirection becomes constant. Therefore, even if a display foropening/closing position may be marked on the applying stopper for theconvenience of handling, it is almost impossible to exactly position thedisplay with respect to the bottle unit. Accordingly, there is a problemthat it is not possible to effectively put into function the pre-markeddisplay of the opening/closing position.

That is, when a front/rear relationship is given to an attitude of thebottle unit by displaying a merchandise name on one side and usagedirections on the other side of the bottle unit, there is a need toadapt positions of displays on the applying stopper, such as theopening/closing position display or an action position display, to thefront/rear positional relationship of the bottle unit for theconvenience of handling and for effective display function. However,unless the positional relationship in the circumferential directionbetween the bottle unit and the applying stopper is controlled so as totake a fixed position, it is impossible to adapt the displays effectedon the applying stopper to the front/rear positional relationship of thebottle unit.

Thus the invention are made to solve these problems found in theabove-described prior art. A technical subject matter of the presentinvention is to get rid of any change in capacity of the measuringchamber, which may be caused by the change in the form of elasticdeformation of the opening/closing valve unit, and thereby an object ofthe invention is to make it always possible for the liquid contained inthe bottle unit to be measured and poured out precisely.

Another technical subject matter of the present invention is thatassembling of the switching unit to the attaching unit is achievednaturally, safely and firmly and thereby an object of the presentinvention is to readily obtain a stable and firm assembling and also afavorable feeling for use.

Still another technical subject matter of the present invention is tofix the circumferential position of attachment of the applying stopperwith respect to the bottle unit at one fixed position, and thereby anobject of the invention is to make effective use of the displays on theapplying stopper and to obtain correct and favorable handling of thevessel.

DISCLOSURE OF THE INVENTION

The invention according to claim 1 comprises:

a bottle unit having a mouth tube on top thereof;

an applying stopper, which comprises

an attaching unit, which is tightly and immovably attached to the mouthtube of the bottle unit and is provided with a stopper unit having asealing outer flange in an open upper end of a central portion;

a switching unit, which is fitted tightly and vertically displaceablyonto said attaching unit, is provided with an inner tube stood at acentral portion so that said sealing outer flange tightly fits into atop end opening at an ascending limit for said switching unit;

an operating unit of a cylindrical shape having a top plate, which isfitted tightly and immovably onto said switching unit, and is providedwith a pouring out mouth at an upper end, said operating unit defining ameasuring chamber of a certain volume together with said switching unit;and

a valve unit, which is provided with a valve head fitted into saidpouring out mouth in such a manner that an upper end portion thereof canprotrude from said mouth and a valve seat provided around a lower end ofsaid valve head and coming into close contact with a lower end openingportion of said pouring out mouth, said valve unit giving an upwardelastic force to an integrated member of said valve seat and said valvehead; and

a cap unit, which covers said applying stopper and is removably fittedonto an upper end of a barrel portion of said bottle unit;

wherein said valve unit further comprises a plurality of fixing platesstood on a top surface of an attaching ring which is immovably attachedto the switching unit, and a plurality of helical elastic elementsinterconnecting said fixing plates and said valve seat, said fixingplates having a height substantially the same as a depth of themeasuring chamber.

In an unused state, i.e., in a measuring state in which a combination ofthe switching unit and the valve unit and the operating unit is locatedat a descending limit, the pouring out mouth of the operating unit isclosed by the valve unit. At the same time, the sealing outer flange ofthe stopper unit of the attaching unit is located above the inner tubeof the switching unit, and a gap is formed between the sealing outerflange and the inner tube. Therefore, the measuring chamber formedbetween the switching unit and the operating unit is in communicationwith an inside of the bottle unit.

To pour out and apply a constant amount of the contained liquid fromthis state, first, the bottle unit is turned upside down to allow theliquid to flow from the bottle unit to the measuring chamber, and thenthe bottle unit is returned to the upright position to let the constantamount of the liquid remain in the measuring chamber.

Then, the operating unit is operated to move the combination of theswitching unit, the valve unit and the operating unit up to theascending limit, relative to a combination of the attaching unit and thestopper unit.

Due to this upward displacement, the sealing outer flange of the stopperunit tightly fits into the upper opening of the inner tube of theswitching unit. As a result, the measuring chamber is disconnected fromthe bottle unit inside, and the vessel becomes in an usable stateallowing for liquid application.

Once the applying stopper is in the applying state, the bottle unit isturned upside down, and the valve head projected from the pouring outmouth of the operating unit is pressed down onto a surface to beapplied, such as human head skin.

When the valve head is pressed against the surface to be applied, it ispushed into the pouring out mouth, and the mouth is opened. The constantamount of the liquid in the measuring chamber is discharged and isapplied to the surface.

During the application of the liquid to the surface, no liquid runs outof the bottle unit because the bottle unit is in the closed state sincethe sealing outer flange fits tightly into the upper opening of theinner tube of the switching unit.

That is, only the constant amount of the liquid that has been measuredout in the measuring chamber is applied onto the surface.

After liquid application is completed, the bottle unit is detached fromthe surface, and is restored to its upright position, and thecombination of the switching unit, the valve unit and the operating unitis brought back to the descending limit.

With the separation of the vessel from the surface, the valve headreturns to its original position by means of the elastic force from theelastic elements, so that the pouring out mouth is closed. As thecombination of the switching unit, the valve unit and the operating unitgoes back to the descending limit, the connection between the measuringchamber and the bottle unit inside is restored, and the vessel returnsto the measuring state.

The helical elastic elements of the valve unit are fixed to top ends ofthe fixing plates stood at a height substantially equal to the depth ofthe measuring chamber. Therefore, these elastic elements are not locatedin the measuring chamber, so that there is little possibility that theyaffect the capacity of the measuring chamber. Thus, the precisespecified amount of the liquid can always be measured out and applied.

The invention according to claim 2 comprises:

a bottle unit having a mouth tube on top thereof;

an applying stopper, which comprises

an attaching unit, which is tightly and immovably attached to the mouthtube of the bottle unit and is provided with a stopper unit having asealing outer flange in an open upper end of a central portion;

a switching unit, which is tightly fitted onto said attaching unit so asto move upward and downward by threaded engagement and is provided withan inner tube stood at a central portion so that said sealing outerflange tightly fits into a top end opening at ascending limit for saidswitching unit;

an operating unit of a cylindrical shape having a top plate, which isfitted tightly and immovably onto said switching unit, and is providedwith a pouring out mouth at an upper end, said operating unit defining ameasuring chamber of a certain volume together with said switching unit;and

a valve unit, which is provided with a valve head fitted into saidpouring out mouth in such a manner that an upper end portion thereof canprotrude from said mouth and a valve seat provided around a lower end ofsaid valve head and coming into close contact with a lower end openingportion of said pouring out mouth, said valve unit giving an upwardelastic force to an integrated member of said valve seat and said valvehead; and

a cap unit, which covers said applying stopper and is removably fittedonto an upper end of a barrel portion of said bottle unit;

wherein a plurality of escape-preventing pieces, inside portions ofwhich are formed to abutting convex portions, connected to a lower endof said switching unit through thin portions in such a manner that thepieces can be bent and are in a spread state, the pieces being bentinwardly when the operating unit is attached to said switching unit, andat the ascending limit, the abutting convex portions abutting against astop ridge on a circumference of the attaching unit from underside.

In the process of assembling the vessel for pouring out and applying aconstant amount of liquid according to the invention, the switching unitis smoothly fitted onto the attaching unit without that the abuttingconvex portions on the pieces come into contact with the stop ridge orhelical ridge of the attaching unit, because the plurality ofescape-preventing pieces on the lower periphery of the switching unitare connected in the spread state.

Thereafter, the operating unit is forcibly pushed onto the switchingunit, so that each of the escape-preventing pieces is bent at the thinportions and pushed inwardly by a lower end surface of the operatingunit. In that state, the switching unit can be inhibited to get awayfrom the attaching unit.

The invention according to claim 3 comprises the following feature inaddition to the invention according to claim 2. At least one soundingpiece, an inside of which is formed to be an surmountable convex, isconnected to the lower periphery of the switching unit through a thinportion in such a manner that it can be bent and a lower portion of thepiece protrudes outwardly. The sounding piece is bent inwardly when theoperating unit is fitted onto the switching unit. The surmountableconvex of the sounding piece is allowed to go over vertical ridges on anouter circumference of the attaching unit to result clicking sound justbefore the ascending limit and the descending limit of the switchingunit.

The invention according to claim 4 comprises the following feature inaddition to the invention according to claim 2. A plurality ofescape-preventing pieces, insides of which are formed to be abuttingconvex portions, and a sounding piece, inside of which is formed to be asurmountable convex portion are connected to the lower periphery of theswitching unit through thin portions in such a manner that the piecescan be bent and lower portions of the pieces protrude outwardly. Aclicking ridge is provided on an inner end surface of an abutting convexportion of one of the escape-preventing pieces which is located at theposition symmetrical to the click sounding piece with respect to acentral axis. These escape-preventing pieces and the sounding piece arebent inwardly when the operating unit is fitted onto the switching unit.The surmountable convex portion and the clicking ridge are allowed to goover vertical ridges on an outer circumference of the attaching unit toresult a clicking sound and give click feeling just before the ascendinglimit and the descending limit of the switching unit.

In the inventions according to claims 3 and 4, the switching unit issmoothly fitted onto the attaching unit without that the plurality ofescape-preventing pieces and the sounding piece come into contact withthe stop ridge or helical ridge of the attaching unit, because theplurality of escape-preventing pieces and the sounding piece on thelower periphery of the switching unit are connected in the spread state.

In a state in which the switching unit has been fitted onto theattaching unit, when the operating unit is forcibly fitted onto theswitching unit, the escape-preventing pieces and the sounding piece arebent at respective thin portions and are pushed inwardly. In that state,the switching unit can be inhibited to escape from the attaching unit.

When the surmountable convex of the sounding piece and the clickingridge of the one escape-preventing piece go over the vertical ridges onthe attaching unit, a click sound and click feeling are resulted, atwhich one can be sure accurately that the applying stopper has reachedthe measuring state or the applying state. This takes place just beforethe ascending limit of the switching unit, i.e., just before theapplying state in which the pouring out mouth can be opened by pressingdown the valve head; or just before the descending limit, i.e., justbefore the measuring state in which the pouring out mouth is tightlyclosed and cannot be opened, and in turn, the measuring chamber isconnected to the bottle unit inside.

The invention according to claim 5 comprises:

a bottle unit having a mouth tube on top thereof;

an applying stopper, which comprises

an attaching unit, which is tightly and immovably attached to the mouthtube of the bottle unit and is provided with a stopper unit having asealing outer flange in an open upper end of a central portion;

a switching unit, which is fitted tightly onto said attaching unit so asto move upwardly and downwardly with a certain stroke in relativerotational movement and is provided with an inner tube stood at acentral portion so that said sealing outer flange tightly fits into atop end opening at ascending limit of said switching unit;

an operating unit of a cylindrical shape having a top plate, which isfitted tightly and immovably onto said switching unit, and is providedwith a pouring out mouth at an upper end, said operating unit defining ameasuring chamber of a certain volume together with said switching unit;and

a valve unit, which is provided with a valve head fitted into saidpouring out mouth in such a manner that an upper end portion thereof canprotrude from said mouth and a valve seat provided around a lower end ofsaid valve head and coming into close contact with a lower end openingportion of said pouring out mouth, said valve unit giving an upwardelastic force to an integrated member of said valve seat and said valvehead; and

a cap unit, which covers said applying stopper and is removably fittedonto an upper end of a barrel portion of said bottle unit;

wherein a vacant zone is formed on an outer circumference surface ofsaid mouth tube at a certain position in a circumferential directionbetween a vertical stop ridge and one end of a circumferential ridge,the other end of which is connected to said vertical stop ridge; andwherein a vertical control ridge is disposed on an upper part of aninner circumference surface of an attaching tube which is a main part ofsaid attaching unit, said vertical control ridge abutting against saidvertical stop ridge in the circumferential direction and against thecircumferential ridge from upside but fitting into said vacant zone withalmost no gap when said attaching tube is fitted onto said mouth tube.

As the attaching tube of the attaching unit is fitted onto the mouthtube of the bottle unit, the vertical control ridge abuts against thecircumferential ridge and the attaching operation is stopped halfway.When this occurs, the attaching unit is rotated relative to the bottleunit in a certain direction. During this rotation, the vertical controlridge abuts against the vertical stop ridge. At that time, the verticalcontrol ridge is released from the stoppage by the circumferentialridge, and faces the vacant zone, so that the vertical control ridge canfit into the vacant zone. Thus, at the position where the verticalcontrol ridge faces the vacant zone, the fitting of the attaching tubeonto the mouth tube is resumed, and the attaching unit is completelyattached to the bottle unit.

Thus, the attachment of the attaching unit to the mouth tube of thebottle unit is achieved by allowing the vertical control ridge to fitinto the vacant zone. As a result, the position at which the attachingunit is attached to the bottle unit is controlled to a certain positionon the circumference of the attaching unit. For this reason, anattaching position of the attaching unit with respect to the bottle unitin the circumferential direction, in other words, an attitude of theapplying stopper attached on the bottle unit in the circumferentialdirection becomes always constant.

The invention according to claim 6 comprises:

a bottle unit having a mouth tube on top thereof;

an applying stopper, which comprises

an attaching unit, which is tightly and immovably attached to the mouthtube of the bottle unit and is provided with a stopper unit having asealing outer flange in an open upper end of a central portion;

a switching unit, which is fitted tightly onto said attaching unit so asto move upwardly and downwardly with a certain stroke in relativerotational movement and is provided with an inner tube stood at acentral portion so that said sealing outer flange tightly fits into atop end opening at ascending limit for said switching unit;

an operating unit of a cylindrical shape having a top plate, which isfitted tightly and immovably onto said switching unit, and is providedwith a pouring out mouth at an upper end, said operating unit defining ameasuring chamber of a certain volume together with said switching unit;and

a valve unit, which is provided with a valve head fitted into saidpouring out mouth in such a manner that an upper end portion thereof canprotrude from said mouth and a valve seat provided around a lower end ofsaid valve head and coming into close contact with a lower end openingportion of said pouring out mouth, said valve unit giving an upwardelastic force to an integrated member of said valve seat and said valvehead; and

a cap unit, which covers said applying stopper and is removably fittedonto an upper end of a barrel portion of said bottle unit;

wherein at least an upper tube of the operating unit is made transparentor translucent so that the liquid inside the measuring chamber isvisible from outside.

In the invention according to claim 6, the measured liquid inside themeasuring chamber can be checked visually from outside so that theliquid can be poured out and applied precisely and with assurance.

The invention according to claim 7 comprises:

a bottle unit having a mouth tube on top thereof;

an applying stopper, which comprises

an attaching unit, which is tightly and immovably attached to the mouthtube of the bottle unit and is provided with a stopper unit having asealing outer flange in an open upper end of a central portion;

a switching unit, which is fitted tightly onto said attaching unit so asto move upwardly and downwardly with a certain stroke in relativerotational movement and is provided with an inner tube stood at acentral portion so that said sealing outer flange tightly fits into atop end opening at ascending limit for said switching unit;

an operating unit of a cylindrical shape having a top plate, which isfitted tightly and immovably onto said switching unit, and is providedwith a pouring out mouth at an upper end, said operating unit defining ameasuring chamber of a certain volume together with said switching unit;and

a valve unit, which is provided with a valve head fitted into saidpouring out mouth in such a manner that an upper end portion thereof canprotrude from said mouth and a valve seat provided around a lower end ofsaid valve head and coming into close contact with a lower end openingportion of said pouring out mouth, said valve unit giving an upwardelastic force to an integrated member of said valve seat and said valvehead; and

a cap unit, which covers said applying stopper and is removably fittedonto an upper end of a barrel portion of said bottle unit;

wherein said stopper unit is immovably fixed on an upper end of an erecttube which is stood to form an upper end of an opened central part ofsaid attaching unit; and wherein a projected stopper piece, which can beinserted into a vertical hole provided in said valve head, is stood at acenter of a sealing top surface, which is an upper surface coming intocontact with a lower surface of a valve head of said valve unit.

In the invention according to claim 7, at an initial period of switchingfrom the measuring state to the applying state, i.e., in an initialperiod of rotation and ascending displacement of a combination of theswitching unit, operating unit and valve unit, the stopper unit does notrotate together with the valve unit, but rotates relative to the stopperunit. Accordingly, occurrence of trouble that the stopper unit and thevalve unit adhere to each other and the pouring out mouth is wronglyopened is prevented.

The invention according to claim 8 comprises:

a bottle unit having a mouth tube on top thereof;

an applying stopper, which comprises

an attaching unit, which is tightly and immovably attached to the mouthtube of the bottle unit and is provided with a stopper unit having asealing outer flange in an open upper end of a central portion;

a switching unit, which is fitted tightly onto said attaching unit so asto move upwardly and downwardly with a certain stroke in relativerotational movement and is provided with an inner tube stood at acentral portion so that said sealing outer flange tightly fits into atop end opening at ascending limit for said switching unit;

an operating unit of a cylindrical shape having a top plate, which isfitted tightly and immovably onto said switching unit, and is providedwith a pouring out mouth at an upper end, said operating unit defining ameasuring chamber of a certain volume together with said switching unit;and

a valve unit, which is provided with a valve head fitted into saidpouring out mouth in such a manner that an upper end portion thereof canprotrude from said mouth and a valve seat provided around a lower end ofsaid valve head and coming into close contact with a lower end openingportion of said pouring out mouth, said valve unit giving an upwardelastic force to an integrated member of said valve seat and said valvehead; and

a cap unit, which covers said applying stopper and is removably fittedonto an upper end of a barrel portion of said bottle unit;

wherein a height of a lower half of an outer circumference surface ofthe valve head of the valve unit, with which a lower end part of acircumference surface of the pouring out mouth of said operating unittightly and slidingly comes into contact, is set nearly equal to amovement in a direction of height of the inner tube of said switchingunit until the inner tube positioned at the descending limit tightlyfits onto a sealing outer flange of said stopper unit.

In the invention according to claim 8, in a range ofdescending/ascending displacement of switching between the measuringstate and the applying state, during a lower half range, in which theinner tube of the switching unit and the sealing outer flange of thestopper unit are separated, close of the pouring out mouth by the valvehead of the valve unit is kept and a state in which liquid other thanthe measured out liquid is poured out is surely prevented, and during anupper half range, in which the sealing outer flange of the stopper unitis tightly fitted into the inner tube of the switching unit, opening ofthe pouring out mouth by the valve head of the valve unit is possibleand only the measured out liquid can be poured out.

The invention according to claim 9 comprises:

a bottle unit having a mouth tube on top thereof;

an applying stopper, which comprises

an attaching unit, which is tightly and immovably attached to the mouthtube of the bottle unit and is provided with a stopper unit having asealing outer flange in an open upper end of a central portion;

a switching unit, which is fitted tightly onto said attaching unit so asto move upwardly and downwardly with a certain stroke in relativerotational movement and is provided with an inner tube stood at acentral portion so that said sealing outer flange tightly fits into atop end opening at ascending limit for said switching unit;

an operating unit of a cylindrical shape having a top plate, which isfitted tightly and immovably onto said switching unit, and is providedwith a pouring out mouth at an upper end, said operating unit defining ameasuring chamber of a certain volume together with said switching unit;and

a valve unit, which is provided with a valve head fitted into saidpouring out mouth in such a manner that an upper end portion thereof canprotrude from said mouth and a valve seat provided around a lower end ofsaid valve head and coming into close contact with a lower end openingportion of said pouring out mouth, said valve unit giving an upwardelastic force to an integrated member of said valve seat and said valvehead; and

a cap unit, which covers said applying stopper and is removably fittedonto an upper end of a barrel portion of said bottle unit;

wherein the stopper unit comprises a fitting portion of a thincylindrical shape provided with ceiling; a sealing outer flange providedin a circumferential direction at a center of an outer circumferencesurface of said fitting portion; and a projected stopper piece of anupright thin rod shape, which is erected from a center of a flat sealingtop surface; and wherein a vertical hole extending vertically isprovided at a center of the valve head of said valve unit in such amanner that the vertical hole forms a gap between the valve head and theprojected stopper piece for allowing air to pass therethrough, andwherein a part of a lower surface of said valve head opposite to saidflat sealing top surface is a flat surface which comes in tight contactwith said sealing top surface.

In the invention according to claim 9, the sealing top surface of thestopper unit is in close contact with the lower surface of the valvehead of the valve unit and the vertical hole provided in the valve headof the valve unit is closed and the pouring out mouth is in a completelyclosed state in the measuring state in which the pouring out mouth ofthe operating unit has been sealed completely by the valve head of thevalve unit. When the measuring state is switched to the applying stateby rotating the operating unit and allowing the valve unit and thestopper unit to relative ascending/descending displace, the sealing topsurface of the stopper unit leaves the lower surface of the valve headof the valve unit at a halfway in the switching operation. The bottleunit inside is opened to the outside through the vertical hole of thevalve head. Thus, before the pouring out mouth is opened by operatingthe valve unit, it becomes possible to eliminate previously the pressuredifference between the bottle unit inside and outside. This arrangementprevents occurrence of troublesome blow out of the liquid due to wronghigh pressure in the bottle unit.

The invention according to claim 10 comprises the following feature inaddition to the invention according to one of claims 1 to 9. The lowersurface of the valve seat abuts against the sealing top surface of thestopper unit at the descending limit of the switching unit. An abuttingstep, against which a part of the switching unit abuts to set adescending limit for the switching unit, is provided at a terminal endof a part of said attaching unit of an ascending/descending displacementcoupling function portion due to relative rotation of the attaching unitand the switching unit.

In the invention according to claim 10, the descending limit of theswitching unit by rotational operation of the operating unit is set bythe abutting step of the attaching unit. There is no occasion in whichthe valve seat is caught up at a pressure more than necessary betweenthe lower peripheral part of the pouring out mouth of the operating unitand the sealing top surface of the stopper unit. Therefore, occurrenceof damage such as deformation to the valve seat is prevented.

The invention according to claim 11 comprises the following feature inaddition to the invention according to one of claims 1 to 10. Anascending/descending coupling by rotational movement of the switchingunit relative to the attaching unit comprises threaded coupling betweena helical ridge provided on an outer circumference surface of theattaching tube of said attaching unit and a helical ridge provided on aninner circumference surface of the main tube of said switching unit.

In the invention according to claim 11, since rotation between theattaching unit and the switching unit and coupling for the ascending ordescending displacement is achieved by threaded coupling, the couplingstructure can be easily formed, and assembling operation can be simplyachieved.

The invention according to claim 12 comprises the following feature inaddition to the invention according to one of claims 1 to 10. Anascending/descending coupling by rotational movement of the switchingunit relative to the attaching unit comprises engagement couplingbetween guide grooves with sloped attitude formed on an outercircumference surface of the attaching tube of said attaching unit andguide projection pieces provided on an inner circumference surface ofthe main tube of said switching unit.

In the invention according to claim 12, since rotation between theattaching unit and the switching unit and coupling for the ascending ordescending displacement is achieved by the engagement of the guideprojections with the guide grooves, it becomes possible to set freely anascending/descending stroke with respect to a relative rotationalmovement in a state in which a stable posture keeping ability at theascending limit position and the descending limit position can beexhibited. With this, it is possible to make the handling of theapplying stopper be favorable.

The invention according to claim 13 comprises the following feature inaddition to the invention according to one of claims 1 to 12. A diameterof a part of discharge side of the pouring out mouth of the operatingunit is step-likely enlarged to be formed to an enlarged diameteropening portion.

In the invention according to claim 13, the liquid can be smoothly andeffectively applied to the surface, but the liquid is prevented fromflowing out excessively, because an opening area of the pouring outmouth facing the applied surface can be widened while suitablymaintaining a cross-sectional area of the flow passage of the pouringout mouth for pouring out the contained liquid.

The invention according to claim 14 comprises the following feature inaddition to the invention according to one of claims 1 to 13. Three ormore window holes are provided on a tube wall of the erect tube which isprovided to form the open upper end of the central part of the attachingunit, and the window holes are provided at regular intervals in acircumferential direction and extend from an upper end to a lower end ofsaid tube wall.

In the invention according to claim 14, a pushing force acting on thestopper unit at the measuring state is supported and distributed atthree or more points equally in order to prevent the erect tube frombeing deformed and deviated from axial alignment by the pushing forcewith the lapse of time. Further, The arrangement of window holes alongthe circumference of the erect tube makes the liquid and air flowthrough the window holes smooth and steady as the vessel is tilted, withno regard to the tilting direction.

The invention according to claim 15 comprises the following feature inaddition to the invention according to one of claims 1 to 14. A pair ofengaging vertical grooves, which are opened upwardly, are providedsymmetrically with respect to a central axis on the outer circumferencesurface of the threaded engagement main tube of the switching unit. Apair of vertical engaging ridges are provided symmetrically with respectto the central axis on the inner circumference surface of the outertube, which is an attaching portion of the operating unit to theswitching unit. The vertical engaging ridges engages with the pair ofvertical engaging grooves to make rotation of the operating unit againstthe switching unit impossible. A lower end of one of the verticalengaging ridges is positioned lower than that of the other of thevertical engaging ridges.

In the invention according to claim 15, by differing the heightpositions of the pair of vertical engaging ridges of the operating unit,it is possible to specifically determine the set direction of theoperating unit by means of an automatic assembling machine. It isautomatically achieved to align the display effected on the surface ofthe operating unit with the display effected on the surface of thebottle unit by regulating the direction of attaching posture of theoperating unit at constant with respect to the switching unit which hasbeen attached to the attaching unit with a constant direction.

The invention according to claim 16 comprises:

a bottle unit having a mouth tube on top thereof;

an applying stopper, which comprises

an attaching unit, which is tightly and immovably attached to the mouthtube of the bottle unit and is provided with a stopper unit having asealing outer flange in an open upper end of a central portion;

a switching unit, which is fitted tightly onto said attaching unit so asto move upwardly and downwardly with a certain stroke in relativerotational movement and is provided with an inner tube stood at acentral portion so that said sealing outer flange tightly fits into atop end opening at ascending limit for said switching unit;

an operating unit of a cylindrical shape having a top plate, which isfitted tightly and immovably onto said switching unit, and is providedwith a pouring out mouth at an upper end, said operating unit defining ameasuring chamber of a certain volume together with said switching unit;and

a valve unit, which is provided with a valve head fitted into saidpouring out mouth in such a manner that an upper end portion thereof canprotrude from said mouth and a valve seat provided around a lower end ofsaid valve head and coming into close contact with a lower end openingportion of said pouring out mouth, said valve unit giving an upwardelastic force to an integrated member of said valve seat and said valvehead; and

a cap unit, which covers said applying stopper and is removably fittedonto an upper end of a barrel portion of said bottle unit;

wherein a skirt tube is connected to a lower end of the attaching tubein a suspended manner, which is a main part of said attaching unit,through a connecting outer flange, said skirt tube being positionedright under the operating unit in an exposed manner; wherein parts ofsaid skirt tube are structured to be displaceable sections which can beelastic deformed in radial direction by cutouts extending from saidskirt tube to said connecting outer flange; and wherein a hook, withwhich a stopper projected at a lower end of an inner circumferencesurface of said operating unit engages from the ascending rotationdirection, is provided on an upper surface of each displaceable section.

In the invention according to claim 16, since, in the measuring state,the stoppers of the operating unit engage with the hooks of theattaching unit attached immovably to the bottle unit from ascendingrotation direction, that is, rotation direction toward the applyingstate, it is not possible to rotationally operate the operating unit tothe applying state with this state. However, it becomes possible torotationally operate the operating unit to the applying state bypressing and displacing the displaceable sections of the attaching unit.

Therefore, the applying stopper cannot be opened unless one knows theprocedure of rotating the operating unit toward the applying state whilepushing and displacing the displaceable sections of the attaching unit.With this, wrong opening is prevented and high safety can be obtained.

The invention according to claim 17 comprises:

a bottle unit having a mouth tube on top thereof;

an applying stopper, which comprises

an attaching unit, which is tightly and immovably attached to the mouthtube of the bottle unit and is provided with a stopper unit having asealing outer flange in an open upper end of a central portion;

a switching unit, which is fitted tightly onto said attaching unit so asto move upwardly and downwardly with a certain stroke in relativerotational movement and is provided with an inner tube stood at acentral portion so that said sealing outer flange tightly fits into atop end opening at ascending limit for said switching unit;

an operating unit of a cylindrical shape having a top plate, which isfitted tightly and immovably onto said switching unit, and is providedwith a pouring out mouth at an upper end, said operating unit defining ameasuring chamber of a certain volume together with said switching unit;and

a valve unit, which is provided with a valve head fitted into saidpouring out mouth in such a manner that an upper end portion thereof canprotrude from said mouth and a valve seat provided around a lower end ofsaid valve head and coming into close contact with a lower end openingportion of said pouring out mouth, said valve unit giving an upwardelastic force to an integrated member of said valve seat and said valvehead; and

a cap unit, which covers said applying stopper and is removably fittedonto an upper end of a barrel portion of said bottle unit;

wherein a cap-fitting/removing unit is unremovably fitted onto an upperportion of the bottle unit in, said cap-fitting/removing unit havinghooking ridges engaging with a lower end of an inner circumferencesurface of the cap unit fitted onto said bottle unit so as to make itimpossible to remove said cap unit from the bottle unit, said hookingridges being provided on upper end portions of tongue-like wall sectionsexposed for the most part right under the cap unit fitted on the bottleunit, and wherein said tongue-like wall sections are structured so thatupper end portions thereof can be elastically displaced in a directionin which the upper end portions come close to the bottle unit bypressing operation.

In the invention according to claim 17, because the hooking rides of thecap-fitting/removing unit unremovably attached and fixed on the bottleunit are in engagement with the lower end of the inner circumferencesurface of the cap unit, it is impossible to separate the cap unit fromthe bottle unit with this state. However, by pushing and elasticallydisplacing the tongue-like wall sections of the cap-fitting/removingunit to release the engagement of the hooking ridges to the lower end ofthe inner circumference surface of the cap unit, separation of the capunit from the bottle unit becomes possible.

Therefore, the cap unit cannot be removed from the bottle unit to putthe applying stopper in the open applicable state, unless one knows theprocedure of removing the cap unit from the bottle unit while flexiblydisplacing the tongue-like wall sections of the cap-fitting/removingunit. With this, wrong opening is prevented and high safety can beobtained.

The invention according to claim 18 comprises the following feature inaddition to the invention according to claim 1. Each of components ofthe applying stopper and the cap unit is made of synthetic resins.

In the invention according to claim 18, since, on structure of thevessel for pouring out and applying a constant volume of liquid, each ofthe structural components is required to have high demand functions suchas smoothness of action, flexible deformability in response to theinterference under the sealing condition, and needs of elastic force ofapplying structure, synthetic resins are the most favorable as themolding materials for components. This is because synthetic resins havemany alternatives to such requirements, are highly moldable, and can bemanufactured at low costs.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a vertical cross-sectional front view of the vessel, showing afirst embodiment of the invention, wherein the right half of the drawingindicates measuring state unable to be opened; and the left halfindicates applying state able to be opened.

FIG. 2 is an enlarged explanatory view of a combination of the stopperunit and the valve unit in the embodiment shown in FIG. 1.

FIG. 3 is a front view showing separately a bottle unit and a pouringout and applying stopper in the embodiment shown in FIG. 1.

FIG. 4 is a front view of an attaching unit in the embodiment shown inFIG. 1, wherein the right half is a vertical cross-sectional view.

FIG. 5 is an entire plan view of the attaching unit shown in FIG. 4.

FIG. 6 is an entire bottom view of the attaching unit shown in FIG. 4.

FIG. 7 is an entire front view of another embodiment of the attachingunit.

FIG. 8 is an entire plan view of the attaching unit shown in FIG. 7.

FIG. 9 is a front view of a stopper unit in the embodiment shown in FIG.1, wherein the right half is a vertical cross-sectional view.

FIG. 10 is a front view of a switching unit in the embodiment shown inFIG. 1, wherein the right half is a vertical cross-sectional view.

FIG. 11 is a front view of another embodiment of the switching unit,wherein the right half is a vertical cross-sectional view.

FIG. 12 is an entire bottom view of the embodiment shown in FIG. 11.

FIG. 13 is an entire vertical cross-sectional front view of an operatingunit in the embodiment shown in FIG. 1.

FIG. 14 is an entire front view of the valve unit in the embodimentshown FIG. 1.

FIG. 15 is an entire plan view of the valve unit shown in FIG. 10.

FIG. 16 is a front view of a cap unit in the embodiment shown in FIG. 1,wherein the right half is a vertical cross-sectional view.

FIG. 17 is an entire front view showing a second embodiment of theinvention, wherein the cap unit is removed.

FIG. 18 is an entire side view of the embodiment shown in FIG. 17,wherein a main portion is shown in a vertical cross-sectional view.

FIG. 19 is an enlarged lateral cross-sectional view of a main portion ofthe embodiment shown in FIG. 17.

FIG. 20 is an entire front view showing a third embodiment of theinvention, wherein a main portion is shown in a vertical cross-sectionalview.

FIG. 21 is an entire side view of the embodiment shown in FIG. 20,wherein the right half of the cap unit is removed.

FIG. 22 is an entire side view of a cap-fitting/removing unit in theembodiment shown in FIG. 20, wherein the right half is a verticalcross-sectional view.

FIG. 23 is an entire front view of a bottle unit in the embodiment shownin FIG. 20.

BEST MODE FOR CARRYING OUT THE INVENTION

The embodiments of the invention will be described with reference to thedrawings.

FIG. 1 shows an entire vertical cross-sectional view, wherein anapplying stopper 1 is attached to a mouth tube 80 of a bottle unit 8. InFIG. 1, the right half indicates an unused state and a measuring stateof a vessel for pouring out and applying a constant amount of liquid andthe left half indicates a usable state and an applying state.

The mouth tube 80 (See FIG. 3) of the bottle unit 8, to which theapplying stopper 1 is attached, is provided with a circumferential stopridge 81 provided on a central part of an outer circumference surface ofthe mouth tube, a vertical stop ridge 82 disposed on an upper area ofthe outer circumference surface, a circumferential ridge 86 disposed inparallel with the circumferential stop ridge 81 and connected to thevertical stop ridge 82 at one end and forming at the other end a vacantzone 87 together with the vertical stop ridge 82, an outer flange 83provided at a lower portion of the outer circumference surface, and apair of projections 84 formed at diametrical opposite positions on anupper surface of the outer flange 83. A pair of engaging recesses 85 areformed on both sides of an upper portion of a barrel, section of whichis substantially elliptical form.

An attaching unit 2 is provided with a skirt tube of which diameter isenlarged at a lower end. A helical ridge 23 (in the case of anembodiment shown in FIGS. 4, 5, and 6) or a guide groove 23 b (in thecase of an embodiment shown in FIGS. 7 and 8) is provided on an outercircumference surface. An attaching tube 20, which is fitted onto themouth tube 80 of the bottle unit 8, is provided with an inner flange 24on an upper area of an inner circumference surface. A sealing tube 26having a straight cylindrical shape is stood on an upper surface of theinner flange 24. An erect tube 27, which is relatively tall and taperedtoward upward, is stood from an inner periphery of the inner flange 24,and is provided with window openings 28.

The window openings 28 are provided at three positions equally spacedfrom each other in an circumferential direction so as to stabilize theerect tube 27 structurally, to prevent the erect tube 27 from beingdeformed and deviated from an axially aligned position due to aging, andto ensure that air and liquid smoothly flow through the window openings28 without being influenced by tilted direction of the bottle unit 8.

On the inner circumference surface of the attaching tube 20 below theinner flange 24, disposed is a vertical control ridge 22, which abutsagainst the vertical stop ridge 82 of the bottle unit 8 in thecircumferential direction and against the circumferential ridge 86 fromupside. The vertical control ridge 22 of the attaching unit 2 tightlyfits into the vacant zone 87 of the bottle unit 8. Below this verticalcontrol ridge 22, disposed is a stop ridge 21, which goes over thecircumferential stop ridge 81 of the bottle unit 8 for the undercutattachment. A pair of recessions 20 a is provided on a lower end face ofthe attaching tube 20 at positions diametrically opposite to each other.These recessions 20 a engage with the projections 84 of the bottle unit8 to immovably retain attachment attitude of the attaching unit 2 withrespect to the bottle unit 8 to a position aligned with the bottle unit.

In the case of the embodiment shown in FIGS. 4 and 6, a stop ridge 29 isdisposed in a circumferential direction on the outer circumferencesurface of the attaching tube 20 below the helical ridge 23. A verticalrib is disposed between the stop ridge 29 and a terminal of the helicalridge 23. The vertical rib constitutes a dead end step 23 a, againstwhich a terminal surface of a helical ridge 40 a disposed on an innerwall of a switching unit 4 at the descending limit of the switching unit4. Two pairs of low vertical ridges 29 a are disposed at positionsdiametrically opposite to each other under the stop ridge 29. Inaddition, a fitting tube 25 is disposed under the inner flange 24 and ittightly fits into the opening of the mouth tube 80.

In the case of the embodiment shown in FIGS. 7 and 8, a pair of guidegrooves 23 b are disposed at positions diametrically opposite to eachother, with both of upper and lower ends being flat and having no slope.A lower terminal end of the guide groove 23 b defines a dead end step 23a against which projected guide piece 40 b of the switching unit 4abuts. At an upper terminal end, the guide groove 23 b is provided witha vertical inserting groove 23 c with which a projected guide piece 40 bof the switching unit 4 is engaged and attached.

In the case of the guide grooves 23 b in the embodiment shown in FIGS. 7and 8, even if the ascending/descending displacement of the switchingunit 4 with respect to relative rotational movement is set larger byincreasing angle of slope, the position of vertical displacement of theswitching unit 4 can be retained in stable against external force, aslong as the guide grooves 23 b have flat terminal ends.

The vertical control ridge 22 of the attaching unit 2 is inserted intothe vacant zone 87 and is engaged therewith to align the attaching unit2 directionally with respect to the bottle unit 8. Thereafter, thevertical control ridge 22 is forcibly pushed against the bottle unit 8to make the stop ridge 21 engaged with the circumferential stop ridge 81for the undercut attachment. Additionally, the recessions 20 a areengaged with the projections 84 of the bottle unit 8 so that theattaching unit 2 is firmly attached to the mouth tube 80 of the bottleunit 8. Tight attachment is obtained by inserting the fitting tube 25tightly into the opening of a mouth tube 80 of the bottle unit.

A stopper unit 3 (See FIGS. 2 and 9) comprises a fitting portion 30 of athin cylindrical shape provided with ceiling. An sealing outer flange31, which is somewhat thick, is disposed in a circumferential directionat a middle height position of an outer circumference surface of thefitting portion 30. A projected stopper piece 33 of an upright thin rodshape is erected from the center of a flat sealing top surface 34. Onthe cylindrical wall just under the sealing outer flange 31 of thefitting portion 30 disposed is a communication holes 32, which helpliquid flow from inside the bottle unit 8 to a measuring chamber A. Ashoulder portion 35 is disposed on the outer circumference surface ofthe fitting portion 30 just under the communication holes 32, and isused to set the limit of insertion and attachment to the erect tube 27of the attaching unit 2. The stopper unit 3 is securely attached to theattaching unit 2 by fitting the stop ridge 27 a of the erect tube 27into a circumferential stop groove 30 a which is disposed in acircumferential direction on the fitting portion 30 below the shoulderportion 35, and by fitting a plurality of vertical stop ridges 30 b intovertical stop grooves 27 b of the erect tube 27.

The switching unit 4 comprises a main tube 40 of a cylindrical shape. Ahelical ridge 40 a, which engages with the helical ridge 23 (see FIG.10), or projected guide pieces 40 b, which fit into the guide grooves 23b (see FIGS. 11 and 12), is disposed on an inner circumference surfaceof the main tube 40. A top plate ring 43 of an inner flange shape isconnected to an upper end of the inner circumferential surface of themain tube 40. An inner tube 45, which is tightly and slidably insertedinto the sealing tube 26 of the attaching unit 2 and which the sealingouter flange 31 of the stopper unit 3 is tightly fitted into an upperopening of the inner tube 45, is connected to an inner circumferentialperiphery of the top plate ring 43 at a central position of the maintube 40.

A plurality of escape-preventing pieces 41, which are provided withabutting convex portions 41 a on the inside, and a thin-plate soundingpiece 48 having a surmountable convex portion 48 a on the inside areintegrally connected to the lower periphery of the main tube 40 throughthin portions 41 b and the thin portion 48 b in such a manner that theycan be bent and in an expanded state. The surmountable convex portion 48a is projected larger than the abutting convex portions 41 a. A lowclicking projection 41 c is provided on a protruding end face of theabutting convex portion 41 a of an escape-preventing piece 41, which islocated at a position diametrically opposite to the sounding piece 48.

A sealing circumferential ridge 46 is provided on the lower periphery ofthe outer circumference surface of the inner tube 45 for the purpose ofsecuring and strengthening the tight contact of the inner tube 45 withthe sealing tube 26 of the attaching unit 2. A pair of vertical engaginggrooves 42 and a circumferential engaging groove 47 are provided in theupper half area of the outer circumference surface of the main tube 40.An attaching cylindrical portion 44 of a short cylindrical shape havinga circumferential ridge on its inner circumference surface is providedat a middle position on the top plate ring 43.

Thus, the main tube 40 is threadedly fitted onto the attaching tube 20so that the main tube 40 is up and down displaced with a certain strokeby relative rotation therebetween. The switching unit 4 is undetachablyattached to the attaching unit 2 because the abutting convex portions 41a abut against the stop ridge 29 from underside as described later. Theswitching unit 4 is tightly attached to the attaching unit 2 byinserting the inner tube 45 into the sealing tube 26. At the ascendinglimit, i.e., in the liquid-applying state, the inner tube 45 tightlyfits onto the sealing outer flange 31 of the stopper unit 3, thereby aside of the bottle unit 8 is sealed.

The operating unit 5 (see FIG. 13) comprises a cylindrical outer tube50, which fits onto the main tube 40 of the switching unit 4 withoutclearance, and an upper tube 54 having a dome-like top wall, which isconnected to an inner flange of narrow width provided on an upperportion of the outer tube 50. The upper tube 54 forms a measuringchamber A having a constant volume together with the top plate ring 43and the inner tube 45 of the switching unit 4. A pouring out tube isstood on an upper end, central portion of the dome-like top wall. Aninner diameter of an upper half portion of the pouring tube which servesas a pouring out mouth 55, is expanded to be an expanded opening 57.

Thus, an application side opening of the pouring out mouth 55 becomes alarge opening area by the expanded opening 57. With this structure, anapplication capacity is improved without increasing an area of a pouringout passage. The expanded opening 57 forms a liquid pool, and therefore,the liquid application is continued smoothly and favorably withoutinterruption.

An immovable attachment of the operating unit 5 to the switching unit 4is achieved by providing, on an upper half of the inner circumferencesurface of the outer tube 50, a pair of long and short vertical ridges51 which are engaged with the pair of vertical engaging grooves 42 ofthe switching unit 4; and a circumferential ridge 56 which is engagedwith the circumferential engaging groove 47. A tight engagement of theoperating unit 5 with the switching unit 4 is achieved by providing atight-fit short tube 53 which is tightly fitted onto the attaching tube44 at an inner circumference end of a lower surface of the inner flange52.

The vertical ridges 51 are different in length, i.e., the heightpositions of lower ends of the vertical ridges 51 are different. This isbecause the operating unit 5 is set in the predetermined direction whenit is assembled by an automatic assembling machine. This makes itpossible to direct a mark previously given on an outer circumferencesurface of the operating unit 5 always in alignment with a markpreviously given on an outer circumference surface of the attaching unit2.

When the operating unit 5 is fitted onto the switching unit 4, theescape-preventing pieces 41 and the sounding piece 48 of the switchingunit 4, which have been in the spread state, are pushed by a lower endsurface of the outer tube 50 of the operating unit 5, and are bentinwardly at the thin portions 41 b and 48 b (see FIG. 1).

Due to the bending displacement of the escape-preventing pieces 41 andthe sounding piece 48, the abutting convex portions 41 a of theescape-preventing pieces 41 engage with the stop ridge 29 from down sidein such a manner that they cannot go over the stop ridge 29, so that theascending limit for the switching unit 4 with respect to the attachingunit 2 is set. As the operating unit 5 is rotationally operated, thesurmountable convex 48 a of the sounding piece 48 and the clickingprojection 41 c of the escape-preventing piece 41 respectively go overthe vertical ridges 29 a and make a clicking sound and give the feel ofclick, right before the ascending limit and the descending limit for theswitching unit 4 in rotational displacement relative to the attachingunit 2.

A valve unit 6 (see FIGS. 14 and 15) comprises a short cylindrical valvehead 61 with a height larger than the pouring out mouth 55 and athickness to closely fit into the pouring out mouth 55. The valve head61 is provided with several (3 in the drawings) of vertical grooves 63on an upper half of an outer circumference surface and with a verticalthrough hole 62 at the center. The valve unit 6 also comprises a valveseat 64, which is disposed under the valve head 61, and has top taperedsurface, with downward slope spreading toward the end thereof. Several(3 in the drawings) of helical elastic elements 65, giving an upwardelastic force, are connected to the valve seat 64 at the upper ends.

The several elastic elements 65 are respectively fixed to upper innersurfaces of a plurality of fixing plates 66 of a rectangular shape attheir lower ends. The fixing plates 66 are stood on an inner edge of anupper surface of an attaching ring 60 having an engagement ridge on anouter circumference surface. The valve unit 6 is attached to theswitching unit 4 by fitting the attaching ring 60 into the attachingtube 44 of the switching unit 4 to effect the undercut coupling.

The fixing plates 66 of the valve unit 6 are formed to have a heightsubstantially close to the height of the inner tube 45 so as to make avolume of the measuring chamber A occupied by the elastic elements 65when they are deformed as small as possible.

Upper ends of the elastic elements 65 are connected to portions of thevalve seat 64, which extend equiangularly from the periphery of thevalve seat so that the portions connected with the upper ends of theelastic elements 65 does not affect the valve-closing action of thevalve seat 64.

A bottom surface of the valve seat 64 is a flat surface with which thetop sealing surface 34 of the stopper unit 3 can come into contact. Thevertical through hole 62 of the valve head 61 has a diameter into whichthe projected stopper piece 33 of the stopper unit 3 can loosely fit(see FIG. 1).

A cap unit 7 (See FIGS. 1 and 16) is structured to be a duplicatedstructure comprising an external cap 70 and an internal cap 74. Theexternal cap 70 has a shape of an elliptic tube provided with a topplate 72, and has a pair of engaging convex portions 71 at positionsdiametrically opposite to each other and on a lower end of an innercircumference surface. The internal cap 74 has a dome-like shape, whichcovers the operating unit 5, and is fixed to the top plate 72 of theexternal cap 70. The internal cap 74 is provided with a stopper tube 73to seal the pouring out mouth 55.

The cap unit 7 is removably attached to the bottle unit 8 by engagingthe engaging convex portions 71 with engaging concave portions 85 of thebottle unit 8. At that time, an inner surface of the dome-like inner cap74 serves as a guide surface for an upper part of the pouring out andapplying stopper 1, and thus the cap unit 7 can be fitted easily andsmoothly.

FIGS. 17-19 show a second embodiment structured to prevent wrongopening/closing operation of the pouring out and applying stopper 1. Abase tube, connected to a lower end of the attaching tube 20 of theattaching unit 2 by a connecting flange 24 c is structured to be a skirttube 24 a disposed right under the operating unit 5 at its descendinglimit. Cutouts 24 d are provided on portions of the skirt tube 24 a andthe connecting flange 24 c positioned at front and rear, so that thefront and rear portions of the skirt tube 24 a are formed to bedisplaceable sections 24 b, which are flexibly displaceable in theradial direction. Each of these displaceable sections 24 b is providedwith hooks 24 e. Stoppers 58 are disposed on lower end of an innercircumference surface of the outer tube 50 of the operating unit 5. Theouter tube 50 is inhibited from the ascending rotation by these stopperswhich are engaged with the hooks 24 b.

In this second embodiment, the operating unit 5 cannot be rotated forascent due to the engagement of the stoppers 58 with the hooks 24 e, inthe measuring state, i.e., when the operating unit 5 is located at itsdescending limit and the pouring out mouth 55 cannot be opened. Thisengagement of the hooks 24 e with the stoppers 58 is released by holdingboth displaceable sections 24 b with fingers and pushing them from thefront and the rear. At that time, the operating unit 5 gets into thestate affording ascending rotation, and thus the pouring out andapplying stopper 1 can be switched from the measuring state to theapplying state.

FIGS. 12-23 show a third embodiment, in which a cap-fitting/removingunit 9 is attached to an upper portion of the bottle unit 8 so as toprevent the fitted cap unit 7 from being removed mistakenly. Thecap-fitting/removing unit 9 comprises an attaching tube 90, which isfitted onto the bottle unit 8. An escape-preventing ridge 98 forengaging with an outer flange 83 of the bottle unit 8 from underside isdisposed in a circumferential direction on an inner surface of theattaching tube 90. A shoulder tube portion 91 of a substantiallyelliptic shape is extended downwardly from a lower edge of the attachingtube 90. The shoulder tube portion 91 is fitted onto a reduced diameterattaching portion 88 of the bottle unit 8, which is formed for thecap-fitting/removing unit 9 to be attached and is a shoulder portion ofthe bottle unit 8, reduced in diameter. Suspended wall sections 93,which are adapted to engage with recessed sections 89 formed at upperportion of both side portions of a barrel portion of the bottle unit 8by means of upward facing abutting steps 92, are formed at lower endedges of both side portions of the shoulder tube 91. Tongue-like wallsections 94 are formed by forming gate shape cutout grooves 96 onportions extending from the suspended wall sections 93 to the shouldertube portions 91. The tongue-like wall sections 93 are provided withhooking ridges 95 on the upper part of an outer surface which is an endof tilting.

When the cap unit 7 is put on the bottle unit 8 to which the pouring outand applying stopper 1 is attached, the cap unit 7 is assembled to thebottle unit 8 in a state that the lower end edge thereof is in contactwith the abutting steps 92 and the hooking ridges 95 are in engagementwith engaging projections 71, so that the cap unit 7 cannot be removedfrom the bottle unit 8.

To remove the cap unit 7, the tongue-like wall sections 94, which aredisposed right under the cap unit 7 and are provided with a plurality offinger applying ridges 97 on the surface thereof, are pushed to betilted inwardly to release the engagement of the hooking ridges 95 withthe engaging projections 71. In that state, the cap unit 7 is drawn upaway from the bottle unit 8.

All the components of the pouring out and applying stopper 1 and the capunit 7, including the cap-fitting/removing unit 9, are molded byutilizing synthetic resins which are adapted to the functions requiredfor the components.

In the case of the pouring out and applying stopper 1, for example,polypropylene is a suitable material for the attaching unit 2, becauseof elastic deformability for the undercut engagement with the bottleunit 8 made of a hard material, maintenance of seal after theengagement, and high resistance to aging. Polypropylene is also suitablefor the stopper unit 3, because this unit 3 is integrally combined withthe attaching unit 2 to constitute a main part and because the sealingouter flange 31 is fitted tightly into the inner tube 45 of theswitching unit 4 so as to obtain strong seal.

Since the switching unit 4 is softer than the attaching unit 2, hardpolyethylene is suitable for molding material, because this materialgives high sealing property through tight and slide contact and hasquite low frictional resistance against polypropylene. The operatingunit 5 is suitably made of polypropylene, because similarly to theattaching unit 2, the operating unit 5 is required to have a tightattaching relationship with the switching unit 4 and also because ondemand, it may become necessary for the operating unit 5 to be able tohave transparency. As the material for the valve unit 6, softpolyethylene can be suitably used to give high elastic recovery and highsealing performance of air-tight compartment.

The cap unit 7 is suitably made of polypropylene for easy deformationrequired in the engagement with the bottle unit 8 of a hard material.Polypropylene is also suitably used for the cap-fitting/removing unit 9,so as to maintain the cap shape in stable and yet to afford elasticdeformation.

ADVANTAGES OF THE INVENTION

The present invention has the structure described above, and therefore,results the following advantages.

In the invention according to claim 1, the lower ends of the helicalelastic elements, which constitute the valve unit to open and close thepouring out mouth, are fixed to the upper portions of the fixing plates,which have a height substantially equal to the depth of the measuringchamber. Therefore, the valve unit rarely affects the change in thecapacity of the measuring chamber, even if the elements are not constantin their form of elastic deformation. This invention thus makes itpossible for a precise set amount of liquid to be measured and pouredout. Only by pressing down the valve head onto the surface to beapplied, precise and suitable application of the contained liquid can beachieved.

Since the lower portions of the elastic elements of the valve unit,which the distance between adjacent elements becomes maximum, are fixedto the hard fixing plates, in the handling of valve units before theyare installed to the vessels for pouring and applying a constant amountof liquid, it is prevented by the fixing plates that the valve heads andthe like enter between the lower end portions of the elastic elements ofother valve units. Therefore, tangling among the valve units isprevented and handling of valve units themselves is thus improved.

In the invention according to claim 2, since a plurality ofescape-preventing pieces are disposed around the lower periphery of theswitching unit in the spread state, the abutting convex portions on theinside of these escape-preventing pieces do not come into contact withthe helical ridge and the stop ridge of the attaching unit duringassembling of the switching unit to the attaching unit in the assemblingsteps of the vessels for pouring and applying a constant amount ofliquid. Therefore, it is easy and smooth to attach the switching unit tothe attaching unit, and there is no fear that part of the helical ridgeor other ridges are deformed permanently.

These escape-preventing pieces are displaced and bent inwardly when theoperating unit is fitted onto the attaching unit. Therefore, theabutting convex portions abut against the stop ridge at the ascendinglimit for the switching unit. Accordingly, the strong and safeescape-preventing function of the switching unit to the attaching unitcan be exhibited.

In the invention according to claim 3, a sounding piece can be disposedat the lower periphery of the switching unit without fear of damage whenthe switching unit is attached to the attaching unit. Therefore, ahighly sensitive clicking function at the ascending and descendinglimits for the switching unit can be afforded.

In the invention according to claim 4, the sound and feeling of clickcan be obtained right before the measuring state and the supplying stateof the applying stopper. Therefore, it is possible to recognizecorrectly the state of the applying stopper and to obtain favorablesense of use.

In the invention according to claim 5, the attaching unit can be fittedonto the bottle unit at a specified position. Thus, the relationshipbetween the front side and the rear side of the bottle unit can bealigned with that of the attaching unit surely and automatically, sothat it is possible to obtain favorable and suitable handling anddisplay.

Particularly, with respect to a bottle unit which the front and rearrelationship is given by displaying the name of company or merchandiseand the liquid efficacy and the like, it is possible to position anapplying stopper on which the state display for use is put at a certainposition along the circumference so as to adapt the state display to thefront and rear relationship of the bottle unit. Accordingly, it ispossible to effectively function the display on the applying stopper.

In the invention according to claim 6, since the liquid inside themeasuring chamber can be visually observed, it is possible to see andconfirm the measuring state of the contained liquid. Accordingly, it ispossible to safely and suitably effect the pouring out and usage of thecontained liquid.

In the invention according to claim 7, since the stopper unit isimmovably attached to the attaching unit, during the initial period ofrotational movement for switching the vessel from the measuring state tothe applying state, a state is always resulted in which the valve unitis relatively rotated to the stopper unit so that they can be separated.With this state, there is no case that the valve head of the valve unitis displaced together with the stopper unit to go away from the pouringout mouth and the pouring out mouth is wrongfully opened, and a suitableand stable action of the valve unit can be obtained.

In the invention according to claim 8, the pouring out mouth is tightlyclosed by the valve unit when the switching from the measuring state tothe applying state is under way and the bottle unit is not in the closedstate. On the other hand, the bottle unit is closed whenever the pouringout mouth can be opened up by the valve unit. In this way, the liquid isnot at all poured out in any amount other than the measured one, andsafe pouring out operations of the contained liquid can be obtained.

In the invention according to claim 9, the vertical through hole, whichhas been closed by the stopper unit, is opened in the initial period ofswitching operation, when the applying stopper is switched from themeasuring state to the applying state by rotational movement. Therefore,even if there has been a pressure difference between the inside andoutside of the vessel, the difference quickly ceases through thevertical through hole. Accordingly, it is possible to prevent beforehandthose accidents wherein the liquid gushes out mistakenly during theapplying operation and no longer is applied smoothly or the liquid fliesin all directions and makes surroundings stained.

In the invention according to claim 10, since stop function at thedescending limit for the switching unit is given by the abutting stepprovided on the attaching unit, there is no occasion in which the valveseat is caught up at a pressure more than necessary between the lowerperipheral part of the pouring out mouth of the operating unit and thesealing top surface of the stopper unit. Therefore, deformation damageand the like to the valve seat are prevented and the sealing function ofthe valve seat is not lost.

In the invention according to claim 11, the coupling for the ascendingor descending displacement caused by the rotation of the switching unitrelative to the attaching unit is achieved by the threaded engagement.Therefore, the coupling structure can be easily formed, and theoperation is simplified when the switching unit is attached to theattaching unit.

In the invention according to claim 12, the coupling for the ascendingor descending displacement caused by the rotation of the switching unitrelative to the attaching unit is achieved by the engagement of theguide projections with the sloped guide grooves. Therefore, in the statecapable of maintaining in stable the position of the switching unitrelative to the attaching unit during the ascending/descendingdisplacement, it becomes possible to set freely the ascending/descendingamount with respect to the rotational amount, thereby to provide anapplying stopper which is easy to operate for switching.

In the invention according to claim 13, the liquid can be smoothly andeffectively applied to the surface because an opening area as theapplication area of contained liquid to the surface can be widenedwithout increasing the cross-sectional area of the pouring out passagefor the liquid.

In the invention according to claim 14, the erect tube of the attachingunit is given a structure in which the pushing force applied thereon isshared at three or more points equally and flexibly. Therefore, thepushing force can be supported without deviating from axial alignment,and sure and steady passing action of the contained liquid and the airthrough the window holes can be obtained.

In the invention according to claim 15, the attitude of assembling ofthe operating unit relative to the switching unit by means of anautomatic assembling machine can be determined at one position along thecircumference, thereby the position mark put on the surface of theoperating unit can be aligned with the function mark put on the surfaceof the attaching unit. Thus, the function mark can be utilizedeffectively, and all the displays on the applying stopper can besuitably aligned with the position of the display on the bottle unit.

In the invention according to claim 16, the rotational operation of theoperation unit from the measuring state, in which the applying stopperis closed, to the applying state in which the applying stopper is openedmust be performed with a certain operating procedure and state to theapplying stopper kept. Since those who do not know this handlingprocedure cannot achieve opening of the applying stopper, the applyingstopper can be protected from being opened mistakenly. Accidents can beprevented beforehand even if children try to open the cock in mischief.

In the invention according to claim 17, separation of the cap unit fromthe bottle unit must be performed with a certain operating procedure andstate to the vessel kept, thereby wrong separation of the cap unit bythose who do not know the procedure and occurrence of danger due toopening of the cap unit by children's mischief can be prevented.

In the invention according to claim 18, there are provided not onlysmooth relative displacement among components, a high sealing abilityderived from flexible response to deformation and elasticity, highproductivity and mold forming ability at a low cost, but also a desiredtransparency depending on needs.

What is claimed is:
 1. A vessel for pouring out and applying a constantamount of liquid comprising: a bottle unit (8) having a mouth tube (80)on top thereof; an applying stopper (1), which comprises an attachingunit (2), which is tightly and immovably attached to the mouth tube ofthe bottle unit and is provided with a stopper unit (3) having a sealingouter flange (31) in an open upper end of a central portion; a switchingunit (4), which is fitted tightly onto said attaching unit (2) so as tomove upward and downward with a certain stroke in relative rotationalmovement and is provided with an inner tube (45) stood at a centralportion so that said sealing outer flange (31) tightly fits into a topend opening at ascending limit for said switching unit (4); an operatingunit (5) of a cylindrical shape having a top plate, which is fittedtightly and immovably onto said switching unit (4), and is provided witha pouring out mouth (55) at an upper end, said operating unit (5)defining a measuring chamber (A) of a certain volume together with saidswitching unit (4); and a valve unit (6), which is provided with a valvehead (61) fitted into said pouring out mouth (55) in such a manner thatan upper end portion thereof can protrude from said mouth and a valveseat (64) provided around a lower end of said valve head (61) and cominginto close contact with a lower end opening portion of said pouring outmouth (55), said valve unit (6) giving an upward elastic force to anintegrated member of said valve seat (64) and said valve head (61); anda cap unit (7), which covers said applying stopper (1) and is removablyfitted onto an upper end of a barrel portion of said bottle unit (8);wherein said valve unit (6) further comprises a plurality of fixingplates (66) stood on a top surface of an attaching ring (60) which isimmovably attached to the switching unit (4), and a plurality of helicalelastic elements (65) interconnecting said fixing plates (66) and saidvalve seat (64), said fixing plates (66) having a height substantiallythe same as a depth of the measuring chamber (A).
 2. A vessel forpouring out and applying a constant amount of liquid comprising: abottle unit (8) having a mouth tube (80) on top thereof; an applyingstopper (1), which comprises an attaching unit (2), which is tightly andimmovably attached to the mouth tube of the bottle unit and is providedwith a stopper unit (3) having a sealing outer flange (31) in an openupper end of a central portion; a switching unit (4), which is fittedtightly onto said attaching unit (2) so as to move upward and downwardwith a certain stroke in relative rotational movement and is providedwith an inner tube (45) stood at a central portion so that said sealingouter flange (31) tightly fits into a top end opening at ascending limitfor said switching unit (4); an operating unit (5) of a cylindricalshape having a top plate, which is fitted tightly and immovably ontosaid switching unit (4), and is provided with a pouring out mouth (55)at an upper end, said operating unit (5) defining a measuring chamber(A) of a certain volume together with said switching unit (4); and avalve unit (6), which is provided with a valve head (61) fitted intosaid pouring out mouth (55) in such a manner that an upper end portionthereof can protrude from said mouth and a valve seat (64) providedaround a lower end of said valve head (61) and coming into close contactwith a lower end opening portion of said pouring out mouth (55), saidvalve unit (6) giving an upward elastic force to an integrated member ofsaid valve seat (64) and said valve head (61); and a cap unit (7), whichcovers said applying stopper (1) and is removably fitted onto an upperend of a barrel portion of said bottle unit (8); wherein a plurality ofescape-preventing pieces (41), inside portions of which are formed toabutting convex portions (41 a), connected to a lower end of saidswitching unit (4) through thin portions (41 b) in such a manner thatthe pieces can be bent and are in a spread state, the pieces (41) beingbent inwardly when the operating unit (5) is attached to said switchingunit (4), and at the ascending limit, the abutting convex portions (41a) abutting against a stop ridge (29) on a circumference of theattaching unit (4) from underside.
 3. The vessel according to claim 2,wherein at least one sounding piece (48), inside portion of which isformed to a surmountable convex portion (48 a), is connected to thelower end of said switching unit (4) through a thin portion (48 b) insuch a manner that the piece (48) can be bent and a lower portionprotrudes outwardly, the piece (48) being bent inwardly when theoperating unit (5) is attached to said switching unit (4), and justbefore the ascending limit and just before descending limit of saidswitching unit (4), said surmountable convex portion (48 a) beingallowed to go over vertical ridges (29 a) on an outer circumference ofthe attaching unit (2) to make a clicking sound.
 4. The vessel accordingto claim 2, wherein a plurality of escape-preventing pieces (41), insideportions of which are formed to abutting convex portions (41 a), areconnected to a lower end of said switching unit (4) through thinportions (41 b) and one sounding piece (48), inside portion of which isformed to a surmountable convex portion (48 a), is connected to thelower end of said switching unit (4) through a thin portion (48 b) insuch a manner that the pieces can be bent and lower portions protrudeoutwardly, wherein a clicking projection (41 c) is provided on an insideend surface of an abutting convex portion (41 a) of one of theescape-preventing pieces (41) positioned at a position diametricallyopposite to the sounding piece (48) with respect to a central axis, andwherein the escape-preventing pieces (41) and the sounding piece (48)are bent inwardly when the operating unit (5) is attached to saidswitching unit (4), and just before the ascending limit and just beforedescending limit of said switching unit (4), said surmountable convexportion (48 a) and said clicking projection (41 c) being allowed to goover vertical ridges (29 a) on an outer circumference of the attachingunit (2) to make a clicking sound and clicking feeling.
 5. A vessel forpouring out and applying a constant amount of liquid comprising: abottle unit (8) having a mouth tube (80) on top thereof; an applyingstopper (1), which comprises an attaching unit (2), which is tightly andimmovably attached to the mouth tube of the bottle unit and is providedwith a stopper unit (3) having a sealing outer flange (31) in an openupper end of a central portion; a switching unit (4), which is fittedtightly onto said attaching unit (2) so as to move upward and downwardwith a certain stroke in relative rotational movement and is providedwith an inner tube (45) stood at a central portion so that said sealingouter flange (31) tightly fits into a top end opening at ascending limitfor said switching unit (4); an operating unit (5) of a cylindricalshape having a top plate, which is fitted tightly and immovably ontosaid switching unit (4), and is provided with a pouring out mouth (55)at an upper end, said operating unit (5) defining a measuring chamber(A) of a certain volume together with said switching unit (4); and avalve unit (6), which is provided with a valve head (61) fitted intosaid pouring out mouth (55) in such a manner that an upper end portionthereof can protrude from said mouth and a valve seat (64) providedaround a lower end of said valve head (61) and coming into close contactwith a lower end opening portion of said pouring out mouth (55), saidvalve unit (6) giving an upward elastic force to an integrated member ofsaid valve seat (64) and said valve head (61); and a cap unit (7), whichcovers said applying stopper (1) and is removably fitted onto an upperend of a barrel portion of said bottle unit (8); wherein a vacant zone(87) is formed on an outer circumference surface of said mouth tube (80)at a certain position in a circumferential direction between a verticalstop ridge (82) and one end of a circumferential ridge (86), the otherend of which is connected to said vertical stop ridge (82); and whereina vertical control ridge (22) is disposed on an upper part of an innercircumference surface of an attaching tube (20) which is a main part ofsaid attaching unit (2), said vertical control ridge (22) abuttingagainst said vertical stop ridge (22) in the circumferential directionand against the circumferential ridge (86) from upside but fitting intosaid vacant zone with almost no gap when said attaching tube (20) isfitted onto said mouth tube (80).
 6. A vessel for pouring out andapplying a constant amount of liquid comprising: a bottle unit (8)having a mouth tube (80) on top thereof; an applying stopper (1), whichcomprises an attaching unit (2), which is tightly and immovably attachedto the mouth tube of the bottle unit and is provided with a stopper unit(3) having a sealing outer flange (31) in an open upper end of a centralportion; a switching unit (4), which is fitted tightly onto saidattaching unit (2) so as to move upward and downward with a certainstroke in relative rotational movement and is provided with an innertube (45) stood at a central portion so that said sealing outer flange(31) tightly fits into a top end opening at ascending limit for saidswitching unit (4); an operating unit (5) of a cylindrical shape havinga top plate, which is fitted tightly and immovably onto said switchingunit (4), and is provided with a pouring out mouth (55) at an upper end,said operating unit (5) defining a measuring chamber (A) of a certainvolume together with said switching unit (4); and a valve unit (6),which is provided with a valve head (61) fitted into said pouring outmouth (55) in such a manner that an upper end portion thereof canprotrude from said mouth and a valve seat (64) provided around a lowerend of said valve head (61) and coming into close contact with a lowerend opening portion of said pouring out mouth (55), said valve unit (6)giving an upward elastic force to an integrated member of said valveseat (64) and said valve head (61); and a cap unit (7), which coverssaid applying stopper (1) and is removably fitted onto an upper end of abarrel portion of said bottle unit (8); wherein at least an upper tube(54) of the operating unit (5) is made transparent or translucent sothat the liquid inside the measuring chamber (A) is visible fromoutside.
 7. A vessel for pouring out and applying a constant amount ofliquid comprising: a bottle unit (8) having a mouth tube (80) on topthereof; an applying stopper (1), which comprises an attaching unit (2),which is tightly and immovably attached to the mouth tube of the bottleunit and is provided with a stopper unit (3) having a sealing outerflange (31) in an open upper end of a central portion; a switching unit(4), which is fitted tightly onto said attaching unit (2) so as to moveupward and downward with a certain stroke in relative rotationalmovement and is provided with an inner tube (45) stood at a centralportion so that said sealing outer flange (31) tightly fits into a topend opening at ascending limit for said switching unit (4); an operatingunit (5) of a cylindrical shape having a top plate, which is fittedtightly and immovably onto said switching unit (4), and is provided witha pouring out mouth (55) at an upper end, said operating unit (5)defining a measuring chamber (A) of a certain volume together with saidswitching unit (4); and a valve unit (6), which is provided with a valvehead (61) fitted into said pouring out mouth (55) in such a manner thatan upper end portion thereof can protrude from said mouth and a valveseat (64) provided around a lower end of said valve head (61) and cominginto close contact with a lower end opening portion of said pouring outmouth (55), said valve unit (6) giving an upward elastic force to anintegrated member of said valve seat (64) and said valve head (61); anda cap unit (7), which covers said applying stopper (1) and is removablyfitted onto an upper end of a barrel portion of said bottle unit (8);wherein said stopper unit (3) is immovably fixed on an upper end of anerect tube (27) which is stood to form an upper end of an opened centralpart of said attaching unit (2); and wherein a projected stopper piece(33), which can be inserted into a vertical hole (62) provided in saidvalve head (61), is stood at a center of a sealing top surface (34),which is an upper surface coming into contact with a lower surface of avalve head (61) of said valve unit (6).
 8. A vessel for pouring out andapplying a constant amount of liquid comprising: a bottle unit (8)having a mouth tube (80) on top thereof; an applying stopper (1), whichcomprises an attaching unit (2), which is tightly and immovably attachedto the mouth tube of the bottle unit and is provided with a stopper unit(3) having a sealing outer flange (31) in an open upper end of a centralportion; a switching unit (4), which is fitted tightly onto saidattaching unit (2) so as to move upward and downward with a certainstroke in relative rotational movement and is provided with an innertube (45) stood at a central portion so that said sealing outer flange(31) tightly fits into a top end opening at ascending limit for saidswitching unit (4); an operating unit (5) of a cylindrical shape havinga top plate, which is fitted tightly and immovably onto said switchingunit (4), and is provided with a pouring out mouth (55) at an upper end,said operating unit (5) defining a measuring chamber (A) of a certainvolume together with said switching unit (4); and a valve unit (6),which is provided with a valve head (61) fitted into said pouring outmouth (55) in such a manner that an upper end portion thereof canprotrude from said mouth and a valve seat (64) provided around a lowerend of said valve head (61) and coming into close contact with a lowerend opening portion of said pouring out mouth (55), said valve unit (6)giving an upward elastic force to an integrated member of said valveseat (64) and said valve head (61); and a cap unit (7), which coverssaid applying stopper (1) and is removably fitted onto an upper end of abarrel portion of said bottle unit (8); wherein a height of a lower halfof an outer circumference surface of the valve head (61) of the valveunit (6), with which a lower end part of a circumference surface of thepouring out mouth (55) of said operating unit (5) tightly and slidinglycomes into contact, is set nearly equal to a movement in a direction ofheight of the inner tube (45) of said switching unit (4) until the innertube (45) positioned at the descending limit tightly fits onto a sealingouter flange (31) of said stopper unit (3).
 9. A vessel for pouring outand applying a constant amount of liquid comprising: a bottle unit (8)having a mouth tube (80) on top thereof; an applying stopper (1), whichcomprises an attaching unit (2), which is tightly and immovably attachedto the mouth tube of the bottle unit and is provided with a stopper unit(3) having a sealing outer flange (31) in an open upper end of a centralportion; a switching unit (4), which is fitted tightly onto saidattaching unit (2) so as to move upward and downward with a certainstroke in relative rotational movement and is provided with an innertube (45) stood at a central portion so that said sealing outer flange(31) tightly fits into a top end opening at ascending limit for saidswitching unit (4); an operating unit (5) of a cylindrical shape havinga top plate, which is fitted tightly and immovably onto said switchingunit (4), and is provided with a pouring out mouth (55) at an upper end,said operating unit (5) defining a measuring chamber (A) of a certainvolume together with said switching unit (4); and a valve unit (6),which is provided with a valve head (61) fitted into said pouring outmouth (55) in such a manner that an upper end portion thereof canprotrude from said mouth and a valve seat (64) provided around a lowerend of said valve head (61) and coming into close contact with a lowerend opening portion of said pouring out mouth (55), said valve unit (6)giving an upward elastic force to an integrated member of said valveseat (64) and said valve head (61); and a cap unit (7), which coverssaid applying stopper (1) and is removably fitted onto an upper end of abarrel portion of said bottle unit (8); wherein the stopper unit (3)comprises a fitting portion (30) of a thin cylindrical shape providedwith ceiling; a sealing outer flange (31) provided in a circumferentialdirection at a center of an outer circumference surface of said fittingportion (30); and a projected stopper piece (33) of an upright thin rodshape, which is erected from a center of a flat sealing top surface(34); and wherein a vertical hole (62) extending vertically is providedat a center of the valve head (61) of said valve unit (6) in such amanner that the vertical hole (62) forms a gap between the valve head(61) and the projected stopper piece (33) for allowing air to passtherethrough, and wherein a part of a lower surface of said valve head(61) opposite to said flat sealing top surface (34) is a flat surfacewhich comes in tight contact with said sealing top surface (34).
 10. Thevessel according to claim 1, 2, 3, 4, 5, 6, 7, 8, or 9, wherein thelower surface of the valve seat (64) abuts against the sealing topsurface (34) of the stopper unit (3) at the descending limit for theswitching unit (4), and wherein an abutting step (23 a), against which apart of the switching unit (4) abuts to set a descending limit for theswitching unit (4), is provided at a terminal end of a part of saidattaching unit (2) of an ascending/descending displacement couplingfunction portion due to relative rotation of the attaching unit (2) andthe switching unit (4).
 11. The vessel according to claim 1, 2, 3, 4, 5,6, 7, 8, or 9, wherein ascending/descending coupling by rotationalmovement of the switching unit (4) relative to the attaching unit (2)comprises threaded coupling between a helical ridge (23) provided on anouter circumference surface of the attaching tube (20) of said attachingunit (2) and a helical ridge (40 a) provided on an inner circumferencesurface of the main tube (40) of said switching unit (4).
 12. The vesselaccording to claim 1, 2, 3, 4, 5, 6, 7, 8, or 9, whereinascending/descending coupling by rotational movement of the switchingunit (4) relative to the attaching unit (2) comprises engagementcoupling between guide grooves (23 b) with sloped attitude formed on anouter circumference surface of the attaching tube (20) of said attachingunit (2) and guide projection pieces (40 b) provided on an innercircumference surface of the main tube (40) of said switching unit (4).13. The vessel according to claim 1, 2, 3,. 4, 5, 6, 7, 8, or 9, whereindiameter of a part of discharge side of the pouring out mouth (55) ofthe operating unit (5) is step-likely enlarged to be formed to anenlarged diameter opening portion (57).
 14. The vessel according toclaim 1, 2, 3, 4, 5, 6, 7, 8, or 9, wherein three or more window holes(28) are provided on a tube wall of the erect tube (27) which isprovided to form the open upper end of the central part of the attachingunit (2), said window holes (28) being provided at regular intervals ina circumferential direction and extending from an upper end to a lowerend of said tube wall.
 15. The vessel according to claim 1, 2, 3, 4, 5,6, 7, 8, or 9, wherein a pair of engaging vertical grooves (42), whichare opened upwardly, are provided symmetrically with respect to acentral axis on the outer circumference surface of the threadedengagement main tube (40) of the switching unit (4); wherein a pair ofvertical engaging ridges (51) are provided symmetrically with respect tothe central axis on the inner circumference surface of the outer tube(50), which is an attaching portion of the operating unit (5) to saidswitching unit (4), said vertical engaging ridges (51) engaging withsaid pair of vertical engaging grooves (42) to make rotation of saidoperating unit (5) against said switching unit (4) impossible; andwherein a lower end of one of said vertical engaging ridges (51) ispositioned lower than that of the other of said vertical engagingridges.
 16. A vessel for pouring out and applying a constant amount ofliquid comprising: a bottle unit (8) having a mouth tube (80) on topthereof; an applying stopper (1), which comprises an attaching unit (2),which is tightly and immovably attached to the mouth tube of the bottleunit and is provided with a stopper unit (3) having a sealing outerflange (31) in an open upper end of a central portion; a switching unit(4), which is fitted tightly onto said attaching unit (2) so as to moveupward and downward with a certain stroke in relative rotationalmovement and is provided with an inner tube (45) stood at a centralportion so that said sealing outer flange (31) tightly fits into a topend opening at ascending limit for said switching unit (4); an operatingunit (5) of a cylindrical shape having a top plate, which is fittedtightly and immovably onto said switching unit (4), and is provided witha pouring out mouth (55) at an upper end, said operating unit (5)defining a measuring chamber (A) of a certain volume together with saidswitching unit (4); and a valve unit (6), which is provided with a valvehead (61) fitted into said pouring out mouth (55) in such a manner thatan upper end portion thereof can protrude from said mouth and a valveseat (64) provided around a lower end of said valve head (61) and cominginto close contact with a lower end opening portion of said pouring outmouth (55), said valve unit (6) giving an upward elastic force to anintegrated member of said valve seat (64) and said valve head (61); anda cap unit (7), which covers said applying stopper (1) and is removablyfitted onto an upper end of a barrel portion of said bottle unit (8);wherein a skirt tube (24 a) is connected to a lower end of the attachingtube (20) in a suspended manner, which is a main part of said attachingunit (2), through a connecting outer flange (24 a), said skirt tube (24)being positioned right under the operating unit (5)in an exposed manner;wherein parts of said skirt tube (24 a) are structured to bedisplaceable sections (24 b) elastic deformable in a radial direction bycutouts (24 d) extending from said skirt tube (24 a) to said connectingouter flange (24 a); and wherein a hook (24 e), with which a stopper(58) projected at a lower end of an inner circumference surface of saidoperating unit (5) engages from the ascending rotation direction, isprovided on an upper surface of each displaceable section (24 b).
 17. Avessel for pouring out and applying a constant amount of liquidcomprising: a bottle unit (8) having a mouth tube (80) on top thereof;an applying stopper (1), which comprises an attaching unit (2), which istightly and immovably attached to the mouth tube of the bottle unit andis provided with a stopper unit (3) having a sealing outer flange (31)in an open upper end of a central portion; a switching unit (4), whichis fitted tightly onto said attaching unit (2) so as to move upward anddownward with a certain stroke in relative rotational movement and isprovided with an inner tube (45) stood at a central portion so that saidsealing outer flange (31) tightly fits into a top end opening atascending limit for said switching unit (4); an operating unit (5) of acylindrical shape having a top plate, which is fitted tightly andimmovably onto said switching unit (4), and is provided with a pouringout mouth (55) at an upper end, said operating unit (5) defining ameasuring chamber (A) of a certain volume together with said switchingunit (4); and a valve unit (6), which is provided with a valve head (61)fitted into said pouring out mouth (55) in such a manner that an upperend portion thereof can protrude from said mouth and a valve seat (64)provided around a lower end of said valve head (61) and coming intoclose contact with a lower end opening portion of said pouring out mouth(55), said valve unit (6) giving an upward elastic force to anintegrated member of said valve seat (64) and said valve head (61); anda cap unit (7), which covers said applying stopper (1) and is removablyfitted onto an upper end of a barrel portion of said bottle unit (8);wherein a cap-fitting/removing unit (9) is unremovably fitted onto anupper portion of the bottle unit (8), said cap-fitting/removing unit (9)having hooking ridges (95) engaging with a lower end of an innercircumference surface of the cap unit(7) fitted onto said bottle unit(8) so as to make it impossible to remove said cap unit (7) from thebottle unit (8), said hooking ridges (95) being provided on upper endportions of tongue-like wall sections (94) exposed for the most partright under the cap unit (7) fitted on the bottle unit (8), and whereinsaid tongue-like wall sections (94) are structured so that upper endportions thereof can be elastically displaced in a direction in whichthe upper end portions come close to the bottle unit (8) by pressingoperation.
 18. The vessel according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9,16 or 17, wherein each of components of the applying stopper (1) and thecap unit (7) is made of synthetic resins.